A person was struck and killed by an Amtrak train shortly around 11 a.m. Friday, just west of the Milford train station.

The death delayed Metro-North and Amtrak service along the Northeast corridor for hours as the investigation continued.

The Amtrak Northeast Regional train, out of Boston and bound for Washington, D.C. was carrying 344 passengers. None of the Amtrak passengers on board were injured, said Amtrak spokesman Craig Schulz.

For several hours, Metro-North trains were delayed 15-20 minutes between West Haven and Stratford. One track has been taken out of service while the incident is investigated.

The identity and gender of the person who was killed has not been released. Officials have not yet determined whether the death was an accident or intentional. Amtrak called the person struck "a trespasser."

Witnesses reported seeing the person jump from the platform in front of the train.

Initially, Metro-North told rail riders there were because of "police activity." Metro-North spokesman Aaron Donovan hoped to have normal service later this afternoon.

Amtrak passengers were transferred to a Metro-North train to New York where they were shuttled to Penn Station.

It appears to be the third recent death of its type in the Connecticut.

A 56-year-old man was struck and killed by an Amtrak train in Groton on Monday morning.

The victim, whose name has not be released, was walking on the tracks when he was struck at about 9 a.m. thrown into the nearby Mystic River by an Acela Express train traveling to Boston from New York.

A high school student was hit by an Amtrak train and killed near a railroad crossing in the Pawcatuck area of nearby Stonington, on April 25.